Illumination devices based on quantum dot technology and methods of making such devices are described. An illumination device includes a substrate having a plurality of microLEDs, a beam splitter, and a film having a plurality of quantum dots. The beam splitter includes a plurality of layers and is disposed between the substrate and the film having the plurality of quantum dots.
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1. An illumination device, comprising: a substrate comprising a plurality of microLEDs; a film comprising a plurality of quantum dots; and a beam splitter comprising a plurality of layers, wherein the plurality of layers is disposed as a continuous layer on top and side surfaces of the plurality of microLEDs and wherein the plurality of layers are arranged such that the beam splitter transmits light from the plurality of microLEDs and reflects light from the plurality of quantum dots.
This invention relates to an illumination device combining microLEDs and quantum dots for enhanced light emission. The device addresses the challenge of integrating multiple light sources into a compact, efficient system while maintaining high color purity and brightness. The illumination device includes a substrate with an array of microLEDs, which serve as primary light emitters. A film containing quantum dots is positioned to interact with the microLEDs, providing additional color conversion or emission capabilities. A beam splitter, composed of multiple layers, is applied as a continuous coating over the top and side surfaces of the microLEDs. The beam splitter is designed to transmit light emitted by the microLEDs while reflecting light generated by the quantum dots. This selective transmission and reflection allows the device to combine light from both sources efficiently, enabling tunable color output or improved spectral performance. The layered structure of the beam splitter ensures uniform optical properties across the device, enhancing overall light extraction and control. The integration of microLEDs and quantum dots in this configuration enables advanced lighting applications, such as displays or solid-state lighting, with improved color gamut and efficiency.
2. The illumination device of claim 1 , wherein each of the plurality of microLEDs is configured to emit light only in a blue wavelength range.
This invention relates to an illumination device incorporating a plurality of microLEDs (micro-light-emitting diodes) designed to emit light exclusively in the blue wavelength range. The device addresses the need for compact, efficient light sources with precise spectral control, particularly for applications requiring narrow-band blue light emission, such as medical treatments, horticultural lighting, or display backlighting. The microLEDs are arranged in an array, with each microLED emitting blue light independently. The device may include additional components, such as a substrate supporting the microLEDs and electrical connections to power and control the array. The microLEDs are optimized for high efficiency and brightness in the blue spectrum, ensuring minimal energy waste and consistent performance. The design may also incorporate heat dissipation features to maintain operational stability. By restricting emission to the blue wavelength range, the device avoids unwanted spectral overlap, improving color purity and reducing the need for external filters. This makes it suitable for applications where precise light characteristics are critical. The compact size of microLEDs allows for high-density integration, enabling versatile deployment in space-constrained environments. The invention may further include optical elements, such as lenses or diffusers, to shape or direct the emitted light as needed.
3. The illumination device of claim 1 , wherein the substrate is a flexible substrate.
This invention relates to an illumination device designed to provide flexible and adaptable lighting solutions. The device addresses the need for lighting systems that can conform to irregular surfaces or be integrated into flexible structures, such as wearable electronics, curved displays, or bendable architectural elements. The illumination device includes a substrate that supports light-emitting elements, such as LEDs or OLEDs, and is configured to emit light in a controlled manner. The substrate is flexible, allowing the entire device to bend, fold, or conform to different shapes without compromising functionality. This flexibility enables the device to be used in applications where rigid lighting solutions are impractical, such as wearable technology, flexible displays, or curved lighting installations. The flexible substrate may be made from materials like polyimide, polyethylene terephthalate (PET), or other polymer-based films that provide durability and flexibility while supporting electronic components. The light-emitting elements are arranged on the substrate to ensure uniform light distribution, and the device may include additional layers for protection, such as encapsulation or adhesive layers, to enhance durability and performance. The flexible nature of the substrate allows the illumination device to be integrated into dynamic environments where rigidity would limit its utility.
4. The illumination device of claim 1 , wherein the plurality of layers is arranged such that the beam splitter transmits at least 90% of light having a wavelength between 400 nm and 480 nm and reflects at least 90% of light having a wavelength between 500 nm and 800 nm.
The invention relates to an illumination device designed to efficiently separate and direct light of different wavelengths. The device addresses the challenge of selectively transmitting or reflecting specific wavelength ranges in optical systems, which is critical for applications requiring precise light management, such as displays, imaging, or lighting. The illumination device includes a beam splitter with a plurality of layers configured to achieve high transmission and reflection efficiency for distinct wavelength bands. Specifically, the layers are arranged to transmit at least 90% of light in the blue wavelength range (400 nm to 480 nm) while reflecting at least 90% of light in the green to near-infrared range (500 nm to 800 nm). This selective filtering ensures minimal loss and optimal separation of the desired spectral components. The beam splitter's layered structure is engineered to exploit interference effects or material properties to achieve the specified performance. The device may be integrated into optical systems where wavelength separation is necessary, such as in color management, laser projection, or sensor applications. The high efficiency of the beam splitter enhances overall system performance by minimizing energy waste and improving signal fidelity.
5. The illumination device of claim 1 , wherein the plurality of layers comprises titanium dioxide, tantalum pentoxide, or silicon dioxide.
This invention relates to an illumination device designed to enhance light extraction efficiency, particularly in light-emitting diode (LED) or other solid-state lighting applications. The device addresses the problem of internal light reflection and absorption within the semiconductor layers, which reduces overall brightness and energy efficiency. The solution involves a multilayer structure integrated into the device to minimize these losses. The illumination device includes a light-emitting layer and a plurality of layers positioned to interact with emitted light. These layers are engineered to have specific refractive indices and thicknesses to promote constructive interference and reduce destructive interference of light waves. This improves light extraction by redirecting internally reflected light outward. The layers may be deposited on the light-emitting layer or embedded within the device structure. The layers are composed of materials such as titanium dioxide, tantalum pentoxide, or silicon dioxide, which are selected for their optical properties, including high refractive indices and low absorption in the visible spectrum. These materials help optimize the interference effects, further enhancing light output. The device may also include additional layers or coatings to further improve performance, such as anti-reflective coatings or protective layers. The overall design aims to maximize light extraction efficiency while maintaining structural integrity and reliability.
6. The illumination device of claim 1 , wherein the plurality of microLEDs are arranged in an array and at least one microLED of the plurality of microLEDs has a dimension between about 1 μm and 50 μm.
MicroLED-based illumination devices are used in displays and lighting applications, offering high brightness, efficiency, and compact form factors. A key challenge is achieving uniform and precise light emission while maintaining scalability and reliability. This invention addresses these issues by incorporating an array of microLEDs, where each microLED has a dimension between approximately 1 μm and 50 μm. The microLEDs are arranged in a structured array to optimize light output and control. The small size of the microLEDs enables high-resolution illumination, making them suitable for applications requiring fine pixelation, such as microdisplays or high-density lighting systems. The array configuration ensures uniform light distribution and efficient heat dissipation, improving performance and longevity. The invention may also include additional features such as optical elements to enhance light extraction or electrical connections to drive the microLEDs independently or in groups. This design allows for flexible integration into various devices, including wearable displays, augmented reality systems, and compact lighting solutions. The use of microLEDs in this size range balances manufacturing feasibility with performance, enabling cost-effective production while maintaining high-quality illumination.
7. The illumination device of claim 1 , wherein the plurality of quantum dots includes quantum dots configured to emit light in a green wavelength range and quantum dots configured to emit light in a red wavelength range.
This invention relates to an illumination device incorporating quantum dots to enhance light emission efficiency and color performance. The device addresses the challenge of achieving high-quality, tunable light output in display and lighting applications by leveraging quantum dots' unique optical properties. The illumination device includes a light source, such as an LED, that emits primary light. A plurality of quantum dots is positioned to receive this light and re-emit it at different wavelengths. The quantum dots are specifically configured to emit light in both green and red wavelength ranges, enabling the device to produce a broad spectrum of colors. The green-emitting quantum dots convert a portion of the primary light into green light, while the red-emitting quantum dots convert another portion into red light. This dual-wavelength emission allows for precise color mixing and improved color rendering. The device may also include additional components, such as a light guide or optical elements, to direct and enhance the emitted light. The quantum dots can be embedded in a matrix material or applied as a film to ensure uniform light distribution and stability. By combining green and red quantum dots, the device achieves high color purity and efficiency, making it suitable for applications requiring vibrant and accurate color reproduction, such as displays, lighting systems, and signage.
8. The illumination device of claim 1 , wherein the beam splitter comprises a compound laminate structure that includes the plurality of layers.
This invention relates to an illumination device designed to improve light distribution and efficiency, particularly in applications requiring precise control of light beams. The device addresses the challenge of achieving uniform and directional light output while minimizing energy loss and optical distortion. The illumination device includes a beam splitter with a compound laminate structure composed of multiple layers. These layers are arranged to selectively reflect, transmit, or diffract light based on their optical properties. The laminate structure allows for fine-tuning of light paths, enabling the device to direct light into specific regions or angles with high precision. This design reduces unwanted reflections and scattering, enhancing overall light output quality. The beam splitter's layered construction can include materials with varying refractive indices, polarization properties, or wavelength selectivity. This versatility allows the device to be adapted for different lighting applications, such as displays, medical devices, or industrial inspection systems. The laminate structure may also incorporate coatings or thin films to further refine light manipulation. By integrating this advanced beam splitter, the illumination device achieves superior control over light distribution, improving energy efficiency and performance in demanding optical systems. The layered design ensures robustness while maintaining flexibility in light management.
9. The illumination device of claim 1 , wherein the beam splitter has a thickness between 1 μm and 50 μm.
This invention relates to an illumination device designed to improve light distribution and efficiency, particularly in applications requiring precise control of light beams. The device includes a beam splitter that divides an incoming light beam into multiple output beams with controlled angular separation. The beam splitter has a thickness between 1 micrometer and 50 micrometers, which optimizes light transmission while minimizing unwanted reflections or losses. The device may also incorporate a light source, such as a laser or LED, and optical elements like lenses or mirrors to shape and direct the light beams. The beam splitter's thin profile allows for compact integration into optical systems, making it suitable for applications in displays, sensors, or medical devices where space and performance are critical. The invention addresses challenges in achieving uniform light distribution and high efficiency in miniaturized optical systems.
10. The illumination device of claim 1 , wherein the plurality of layers are formed from an extruded polymer.
The invention relates to an illumination device with a layered structure, where the layers are formed from an extruded polymer. The device addresses the need for efficient, durable, and cost-effective lighting solutions, particularly in applications requiring uniform light distribution and structural integrity. The extruded polymer layers provide flexibility in design, allowing for customizable shapes and sizes while maintaining mechanical strength. The layers can be stacked or arranged in a specific configuration to optimize light diffusion, heat dissipation, or other optical properties. The use of extruded polymer ensures consistent material properties and reduces manufacturing complexity compared to traditional methods like injection molding or layer-by-layer assembly. This approach also enables the integration of additional components, such as light-emitting diodes (LEDs) or reflective surfaces, within or between the layers. The extruded polymer layers may be transparent, translucent, or opaque, depending on the application, and can be further processed to enhance light transmission or diffusion. The device is particularly useful in lighting fixtures, signage, or decorative lighting where both aesthetic and functional performance are critical. The extruded polymer construction allows for scalable production, making it suitable for mass manufacturing while maintaining high-quality standards.
11. The illumination device of claim 1 , wherein the film includes a first layer, a second layer, and an adhesive material disposed between the first layer and the second layer, the adhesive material comprising the plurality of quantum dots.
This invention relates to an illumination device incorporating a film with quantum dots for enhanced light emission. The device addresses the challenge of improving light quality, efficiency, and color accuracy in lighting applications by integrating quantum dots into a multi-layer film structure. The film consists of a first layer, a second layer, and an adhesive material sandwiched between them. The adhesive material contains a plurality of quantum dots, which are semiconductor nanoparticles that emit light when excited by an external light source. The quantum dots in the adhesive layer enable precise control over the emitted light's wavelength, allowing for tunable color output and improved color rendering. The multi-layer design ensures durability and uniform distribution of quantum dots, enhancing the device's performance and longevity. This approach is particularly useful in displays, lighting systems, and other optical applications where high-quality light emission is critical. The quantum dots' placement within the adhesive layer facilitates efficient excitation and minimizes scattering, resulting in brighter and more accurate light output. The overall structure improves light conversion efficiency while maintaining structural integrity.
12. The illumination device of claim 1 , wherein a first portion of the plurality of layers is in physical contact with the substrate and a second portion of the plurality of layers is disposed on the top and side surfaces of the plurality of microLEDs.
This invention relates to an illumination device incorporating microLEDs (micro-light-emitting diodes) with an improved structural configuration. The device addresses challenges in integrating microLEDs with substrates, particularly ensuring efficient light extraction and thermal management while maintaining structural stability. The illumination device includes a substrate supporting a plurality of microLEDs, each having top and side surfaces. A plurality of layers is deposited over the microLEDs, where a first portion of these layers is in direct physical contact with the substrate, while a second portion is positioned on the top and side surfaces of the microLEDs. This layered arrangement enhances light emission efficiency by optimizing the optical path and reducing internal reflections. The layers may include conductive, insulating, or encapsulating materials tailored to the device's functional requirements. The device may further incorporate additional features such as electrical contacts, reflective coatings, or thermal dissipation elements, depending on the specific application. The layered structure ensures mechanical stability while allowing for precise control over light extraction and electrical performance. This configuration is particularly useful in high-density microLED displays, solid-state lighting, and other optoelectronic applications where compactness and efficiency are critical. The invention improves upon prior art by providing a more robust and efficient integration of microLEDs with substrates, addressing issues such as light leakage and thermal stress.
13. The illumination device of claim 1 , wherein the plurality of layers are arranged such that the beam splitter transmits light in a blue wavelength range from the plurality of microLEDs and reflects light in red and green wavelength ranges from the plurality of quantum dots.
This invention relates to an illumination device incorporating microLEDs and quantum dots for generating multi-color light. The device addresses the challenge of efficiently combining light from different sources to produce a broad spectrum of colors, particularly in display or lighting applications where compact, high-performance light sources are needed. The illumination device includes a plurality of microLEDs and a plurality of quantum dots, each capable of emitting light in different wavelength ranges. A beam splitter is positioned to separate and direct the light from these sources. The beam splitter is configured to transmit light in the blue wavelength range from the microLEDs while reflecting light in the red and green wavelength ranges from the quantum dots. This arrangement ensures that the blue light from the microLEDs passes through the beam splitter, while the red and green light from the quantum dots is directed toward the same output path, enabling the combination of all three primary colors for full-color illumination. The device may also include additional layers, such as a substrate, a reflective layer, and an encapsulation layer, to support and protect the microLEDs and quantum dots. The reflective layer may be positioned to enhance light extraction efficiency by redirecting light that would otherwise be lost. The encapsulation layer provides environmental protection while maintaining optical transparency. This design allows for a compact, efficient, and high-performance illumination system suitable for applications requiring precise color control and brightness.
14. A display device, comprising: a plurality of microLEDs on a substrate; a film comprising a plurality of quantum dots; and a continuous layer of beam splitter disposed on top and side surfaces of the plurality of microLEDs, wherein the continuous layer of beam splitter is configured to transmit light from the plurality of microLEDs and reflect light from the plurality of quantum dots.
A display device integrates microLEDs with quantum dots to enhance color performance. The device includes a substrate supporting multiple microLEDs, which emit light for display purposes. A film containing quantum dots is positioned to interact with the microLEDs. A continuous beam splitter layer covers the top and side surfaces of the microLEDs, serving as a critical optical component. This beam splitter transmits light emitted by the microLEDs while reflecting light generated by the quantum dots. The quantum dots convert or enhance the light from the microLEDs, improving color purity and efficiency. The beam splitter's continuous coverage ensures uniform optical interaction across the display surface. This design addresses limitations in traditional display technologies by combining the high brightness and efficiency of microLEDs with the tunable color properties of quantum dots, resulting in a display with superior color accuracy and performance. The beam splitter's dual functionality of transmission and reflection optimizes light management within the device.
15. The display device of claim 14 , wherein the continuous layer of beam splitter is configured to transmit light in a blue wavelength range from the plurality of microLEDs and reflect light in red and green wavelength ranges from the plurality of quantum dots.
A display device incorporates a continuous layer of beam splitter to manage light from different light-emitting sources. The device includes an array of microLEDs and an array of quantum dots, each emitting light in distinct wavelength ranges. The beam splitter layer is designed to transmit light in the blue wavelength range from the microLEDs while reflecting light in the red and green wavelength ranges from the quantum dots. This configuration allows the device to combine the emitted light from both sources into a single optical path, enabling a compact and efficient display structure. The microLEDs and quantum dots are arranged in a stacked or adjacent configuration, with the beam splitter layer positioned to direct the light appropriately. The device may also include additional optical elements, such as lenses or filters, to enhance light output and color purity. This approach leverages the high efficiency and brightness of microLEDs for blue light while utilizing quantum dots for red and green light, improving overall display performance and color accuracy. The continuous beam splitter layer ensures uniform light transmission and reflection across the display area, maintaining consistent color and brightness levels.
16. The display device of claim 14 , wherein the continuous layer of beam splitter comprises a plurality of layers disposed on the top and side surfaces of the plurality of microLEDs.
A display device incorporates a beam splitter layer integrated with microLED (light-emitting diode) arrays to enhance light extraction efficiency and viewing angles. The device addresses challenges in conventional microLED displays, such as limited light output and narrow viewing angles, by optimizing light path management. The beam splitter layer is a continuous structure applied to both the top and side surfaces of the microLEDs, ensuring uniform light distribution and minimizing internal reflections. This multi-layered beam splitter redirects emitted light outward, improving brightness and reducing optical losses. The design also supports high-resolution displays by maintaining precise alignment of the beam splitter with the microLED array, ensuring consistent performance across the display. The beam splitter's layered construction may include dielectric materials or other optical coatings tailored to specific wavelength ranges, further enhancing efficiency. This approach enables brighter, more energy-efficient displays with wider viewing angles, suitable for applications in high-performance screens, augmented reality devices, and other advanced display technologies.
17. The display device of claim 14 , wherein the continuous layer of beam splitter is in physical contact with the top and side surfaces of each microLED of the plurality of microLEDs.
This invention relates to display devices incorporating microLED arrays and beam splitter layers. The problem addressed is improving light extraction efficiency and uniformity in microLED displays by optimizing the interface between microLEDs and beam splitter layers. Traditional microLED displays often suffer from light loss at interfaces between microLEDs and optical layers, leading to reduced brightness and contrast. The invention features a display device with an array of microLEDs, each having top and side surfaces. A continuous beam splitter layer is in direct physical contact with both the top and side surfaces of each microLED. This configuration enhances light extraction by minimizing reflections and scattering at interfaces. The beam splitter layer may be formed from a material with a refractive index between that of the microLED semiconductor and the surrounding medium, facilitating efficient light coupling. The microLEDs are arranged in a matrix with spacing between them, and the beam splitter layer conformally covers these gaps as well. This design improves light output uniformity and reduces optical losses compared to systems where the beam splitter only contacts the top surfaces of the microLEDs. The invention may be applied in high-performance displays requiring bright, uniform illumination, such as augmented reality devices or high-end televisions.
18. The display device of claim 14 , wherein a first portion of the continuous layer of beam splitter is in physical contact with the substrate and a second portion of the continuous layer of beam splitter is disposed on the top and side surfaces of the plurality of microLEDs.
This invention relates to display devices incorporating microLEDs and a beam splitter layer. The technology addresses challenges in integrating microLEDs with optical components to improve light extraction efficiency and display performance. The device includes a substrate with an array of microLEDs, each having top and side surfaces. A continuous layer of beam splitter material is applied, where a first portion directly contacts the substrate, while a second portion covers the top and side surfaces of the microLEDs. This configuration enhances light extraction by redirecting emitted light from the microLEDs, reducing internal reflections and improving brightness and uniformity. The beam splitter layer may also serve as a protective barrier for the microLEDs. The invention is particularly useful in high-efficiency display applications, such as augmented reality (AR) devices, where compact and bright light sources are critical. The continuous beam splitter layer ensures seamless integration with the microLEDs, optimizing optical performance without additional alignment steps. The design minimizes optical losses and improves overall display quality by efficiently managing light output from the microLEDs.
19. The display device of claim 14 , wherein each of the plurality of microLEDs is configured to emit light only in a blue wavelength range.
This invention relates to display devices incorporating microLEDs (micro-light-emitting diodes) and addresses the challenge of achieving high color purity and efficiency in display technologies. The display device includes an array of microLEDs, each capable of emitting light exclusively within the blue wavelength range. To produce other colors, the device employs a color conversion layer positioned over the microLEDs. This layer contains color conversion materials that convert the blue light into other visible wavelengths, such as red and green, while maintaining high color accuracy. The microLEDs are arranged in a grid pattern, and each microLED is electrically connected to a substrate via conductive traces. The color conversion layer is applied in a patterned manner, aligning with specific microLEDs to ensure precise color output. The device may also include a reflective layer beneath the microLEDs to enhance light extraction efficiency. This design allows for a compact, high-resolution display with improved color performance and energy efficiency compared to traditional LED or OLED displays. The use of blue microLEDs as a primary light source simplifies manufacturing and reduces costs while enabling vibrant and accurate color reproduction.
20. The display device of claim 14 , wherein the continuous layer of beam splitter includes a plurality of layers; and wherein adjacent layers in the plurality of layers have refractive indices different from each other.
A display device incorporates a continuous beam splitter layer to enhance optical performance. The beam splitter is structured as a multi-layered assembly where adjacent layers have distinct refractive indices. This design variation improves light transmission, reflection, or polarization control by leveraging the refractive index differences between layers. The beam splitter may be integrated into a display system to manage light paths, such as separating or combining light beams for augmented reality, virtual reality, or other optical applications. The multi-layered configuration allows for precise tuning of optical properties, enabling better contrast, brightness, or efficiency in the display. The beam splitter can be part of a larger optical stack that includes additional components like waveguides, polarizers, or light sources, depending on the display's requirements. The refractive index variation between layers helps optimize light behavior, reducing unwanted reflections or improving directional control of light within the system. This approach addresses challenges in display technology related to light management, such as improving image quality or reducing optical losses in compact or high-performance display systems.
21. The display device of claim 14 , wherein the film includes a first layer, a second layer, and an adhesive material between the first layer and the second layer, the adhesive material comprising the plurality of quantum dots.
A display device incorporates a film structure with embedded quantum dots to enhance color performance. The film consists of a first layer, a second layer, and an adhesive material sandwiched between them. The adhesive material contains a plurality of quantum dots, which are semiconductor nanoparticles that emit light of specific wavelengths when excited. These quantum dots improve color purity and brightness in the display by converting incoming light into precise colors. The film is integrated into the display to modify its optical properties, such as enhancing color gamut or adjusting light transmission. The first and second layers may serve as protective or functional layers, while the adhesive material ensures the quantum dots are evenly distributed and securely held in place. This configuration allows for efficient light conversion without compromising the structural integrity of the display. The use of quantum dots in the adhesive layer provides flexibility in tuning the display's color characteristics while maintaining durability. This technology addresses the need for high-performance, color-accurate displays in applications like televisions, smartphones, and digital signage.
22. The display device of claim 14 , wherein the continuous layer of beam splitter is configured to transmit at least 90% of light having a wavelength between 400 nm and 480 nm and to reflect at least 90% of light having a wavelength between 500 nm and 800 nm.
This invention relates to display devices, specifically those incorporating a beam splitter to manage light transmission and reflection. The problem addressed is the need for efficient light separation in display systems, particularly to enhance color purity and brightness by selectively transmitting blue light while reflecting other visible wavelengths. The display device includes a continuous layer of beam splitter material. This layer is engineered to transmit at least 90% of light in the blue wavelength range (400 nm to 480 nm) while reflecting at least 90% of light in the green to red range (500 nm to 800 nm). This selective transmission and reflection improves display performance by ensuring blue light passes through unimpeded while redirecting other colors for optimal use in the display system. The beam splitter's continuous structure avoids gaps or discontinuities that could degrade optical performance. The beam splitter layer is integrated into a display system where light sources, such as LEDs or lasers, emit different wavelengths. The blue light (400-480 nm) is transmitted through the beam splitter, while green, yellow, and red light (500-800 nm) are reflected. This separation allows for precise control of light paths, enhancing color accuracy and reducing optical losses. The high transmission and reflection efficiencies (at least 90%) ensure minimal energy waste and improved display brightness. This technology is particularly useful in high-performance displays, such as augmented reality (AR) or virtual reality (VR) systems, where color fidelity and brightness are critical. The beam splitter's design enables compact and efficient optical architectures, making it suitable for applications requiring precise light management.
23. The display device of claim 14 , wherein the plurality of quantum dots comprises a first group of quantum dots configured to emit light in a green wavelength range and a second group of quantum dots configured to emit light in a red wavelength range.
This invention relates to display devices incorporating quantum dots to enhance color performance. The device addresses the challenge of achieving high color purity and efficiency in displays by using quantum dots to emit light in specific wavelength ranges. The display includes a plurality of quantum dots, which are categorized into at least two groups. The first group emits light in the green wavelength range, while the second group emits light in the red wavelength range. These quantum dots are integrated into the display to produce precise and vibrant colors, improving the overall color accuracy and brightness of the display. The device may also include additional components, such as a light source and a color filter, to further refine the emitted light. By selectively activating the quantum dots, the display can dynamically adjust color output, enabling high-fidelity color reproduction. This approach enhances display performance by leveraging the unique optical properties of quantum dots, providing a solution for achieving superior color quality in electronic displays.
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March 26, 2018
January 28, 2020
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